/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: xiaotutu
 * Date: 2023-10-25
 * Time: 11:58
 *
 *
 */

//class Test1{
//    public String toString() {
//        System.out.print("aaa");
//        return "bbb";
//    }
//}
//
//
//public class Test {
//    public static void main(String[] args) {
//        Test1 test1 = new Test1();
//        System.out.println(test1);
//    }
//}


/*
class X{
    Y y=new Y();//1
    public X(){//2
        System.out.print("X");
    }
}
class Y{
    public Y(){//3
        System.out.print("Y");
    }
}
public class Z extends X{
    Y y=new Y();//4
    public Z(){//5
        System.out.print("Z");
    }
    public static void main(String[] args) {
        new Z();
    }
}*/

import java.util.Scanner;


class Base {

    private int x;
    private int y;

    public Base(int x, int y) {
        this.x = x;
        this.y = y;
    }

    public int getX() {
        return x;
    }

    public int getY() {
        return y;
    }

}

class Sub extends Base {

    private int z;

    public Sub(int  x, int y, int z) {
        super(x, y);
        this.z = z;
    }

    public int getZ() {
        return z;
    }

    public int calculate() {
        return super.getX() * super.getY() * this.getZ();
    }

}

public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNextInt()) {
            int x = scanner.nextInt();
            int y = scanner.nextInt();
            int z = scanner.nextInt();
            Sub sub = new Sub(x, y, z);
            System.out.println(sub.calculate());
        }
    }

}

/*
class Student {
    public int age;

    {
        this.age = 20;
    }

    public Student(int age) {
        this.age = age;
    }


}

public class Test {
    public static void main(String[] args) {
        Student student = new Student(11);
        System.out.println(student.age);
    }
}*/
